import React, { Component } from 'react'
import { withRouter } from 'react-router-dom'
class Header extends Component {
  render() {
    // console.log('Header组件收到的props是',this.props);
    return (
      <div className="page-header"><h2>React Router Demo</h2></div>
    )
  }
}

//withRouter可以加工一般组件，让一般组件具备路由组件所特有的API
//withRouter的返回值是一个新组件
export default withRouter(Header);
